Difference between revisions of "Osmotic pressure"
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| − | + | === [[Does size matter? Elasticity of compressed suspensions of colloidal- and granular-scale microgels]] === | |
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| + | Menut et al. show that microgels have different elastic properties based on their particle size. In compression, both colloidal and granular macrogels behave similiarly due to tight packing densities. Here osmotic events are limited to elastic contributions by the gel matrix, and solvent expulsion - neither of which are effected by particle size. However, microgel shear response is size dependent. Brownian motion determines the elastic properties of colloidal particles while solvent-polymer interactions govern the response of granular systems. This result was verified by testing chemically distinct microgels. In colloidal systems, Brownian movement, allows the particles to rapidly deform and move independent of system chemistry, while in granular systems, shear response varied widely depending on the chemical nature of the microgel. | ||
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[[Motility driven by macromolecular springs and ratchets]] | [[Motility driven by macromolecular springs and ratchets]] | ||
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| + | [[Radial Compression of Microtubules and the Mechanism of Action of Taxol and Associated Proteins]] | ||
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| + | [[Solvent mediated assembly of nanoparticles confined in mesoporous alumina]] | ||
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| + | [[New directions in mechanics]] | ||
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| + | [[Stretching and polarizing a dielectric gel immersed in a solvent]] | ||
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| + | [[A theory of coupled diffusion and large deformation in polymeric gels]] | ||
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| + | [[Large deformation and electrochemistry of polyelectrolyte gels]] | ||
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| + | [[A theory of constrained swelling of a pH-sensitive hydrogel]] | ||
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| + | [[Indentation of polydimethylsiloxane submerged in organic solvents]] | ||
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| + | [[Equations of state for ideal elastomeric gels]] | ||
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| + | [[Soft colloids make strong glasses]] | ||
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| + | [[Elasticity of Compressed Emulsions]] | ||
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| + | [[Mechanical Response of Cytoskeletal Networks]] | ||
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| + | [[Diffusion through colloidal shells under stress]] | ||
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| + | [[Dewetting Instability during the Formation of Polymersomes from Block-Copolymer-Stabilized Double Emulsions]] | ||
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| + | [[Dealing with mechanics: mechanisms of force transduction in cells]] | ||
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| + | [[Direct imaging of repulsive and attractive colloidal glasses]] | ||
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| + | [[Influence of Internal Capsid Pressure on Viral Infection by Phage λ]] | ||
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| + | [[Does size matter? Elasticity of compressed suspensions of colloidal- and granular-scale microgels]] | ||
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| + | [[Origin of de-swelling and dynamics of dense ionic microgel suspensions]] | ||
Latest revision as of 15:50, 23 September 2012
Does size matter? Elasticity of compressed suspensions of colloidal- and granular-scale microgels
Menut et al. show that microgels have different elastic properties based on their particle size. In compression, both colloidal and granular macrogels behave similiarly due to tight packing densities. Here osmotic events are limited to elastic contributions by the gel matrix, and solvent expulsion - neither of which are effected by particle size. However, microgel shear response is size dependent. Brownian motion determines the elastic properties of colloidal particles while solvent-polymer interactions govern the response of granular systems. This result was verified by testing chemically distinct microgels. In colloidal systems, Brownian movement, allows the particles to rapidly deform and move independent of system chemistry, while in granular systems, shear response varied widely depending on the chemical nature of the microgel.
See also:
Osmotic pressure in Polymer solutions in Polymers and polymer solutions from Lectures for AP225.
Keyword in references:
Diffusion through colloidal shells under stress
The Elementary Theory of the Brownian Motion
Multifunctional Actuation Systems Responding to Chemical Gradients
Non-equilibration of hydrostatic pressure in blebbing cells
Gravitational stability of suspensions of attractive colloidal particles
Optimal vein density in artificial and real leaves
Flip-flop-induced relaxation of bending energy: implications for membrane remodeling
Elastohydrodynamics of wet bristles, carpets and brushes
Motility driven by macromolecular springs and ratchets
Radial Compression of Microtubules and the Mechanism of Action of Taxol and Associated Proteins
Solvent mediated assembly of nanoparticles confined in mesoporous alumina
Stretching and polarizing a dielectric gel immersed in a solvent
A theory of coupled diffusion and large deformation in polymeric gels
Large deformation and electrochemistry of polyelectrolyte gels
A theory of constrained swelling of a pH-sensitive hydrogel
Indentation of polydimethylsiloxane submerged in organic solvents
Equations of state for ideal elastomeric gels
Soft colloids make strong glasses
Elasticity of Compressed Emulsions
Mechanical Response of Cytoskeletal Networks
Diffusion through colloidal shells under stress
Dealing with mechanics: mechanisms of force transduction in cells
Direct imaging of repulsive and attractive colloidal glasses
Influence of Internal Capsid Pressure on Viral Infection by Phage λ
Does size matter? Elasticity of compressed suspensions of colloidal- and granular-scale microgels
Origin of de-swelling and dynamics of dense ionic microgel suspensions
